| Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). |
| Mark the correct choice as: |
| Assertion [A]: Capacitor serves as a block for DC and offers an easy path to AC. |
| Reason (R): Capacitive reactance is inversely proportional to frequency. |
A) Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A]
B) Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A]
C) Assertion [A] is true but Reason (R) is false
D) Assertion [A] is false and Reason (R) is also false
Correct Answer: A
Solution :
The capacitive reactance of capacitor is given by \[{{X}_{C}}=\frac{1}{\omega C}=\frac{1}{2\pi fC}\] So this is infinite for DC (f = 0) and has a finite value for AC Therefore a capacitor blocks DC and offers an easy path for AC.
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